//--------------------------------------------------------------------------------------
// File: WICTextureLoader.h
//
// Function for loading a WIC image and creating a Direct3D runtime texture for it
// (auto-generating mipmaps if possible)
//
// Note: Assumes application has already called CoInitializeEx
//
// Warning: CreateWICTexture* functions are not thread-safe if given a d3dContext instance for
//          auto-gen mipmap support.
//
// Note these functions are useful for images created as simple 2D textures. For
// more complex resources, DDSTextureLoader is an excellent light-weight runtime loader.
// For a full-featured DDS file reader, writer, and texture processing pipeline see
// the 'Texconv' sample and the 'DirectXTex' library.
//
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
// PARTICULAR PURPOSE.
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// http://go.microsoft.com/fwlink/?LinkId=248926
// http://go.microsoft.com/fwlink/?LinkId=248929
//--------------------------------------------------------------------------------------

#pragma once

#include <d3d11_1.h>
#include <stdint.h>


namespace DirectX
{
	enum WIC_LOADER_FLAGS
	{
		WIC_LOADER_DEFAULT = 0,
		WIC_LOADER_FORCE_SRGB = 0x1,
		WIC_LOADER_IGNORE_SRGB = 0x2,
	};

	// Standard version
	HRESULT CreateWICTextureFromMemory(
		_In_ ID3D11Device* d3dDevice,
		_In_reads_bytes_(wicDataSize) const uint8_t* wicData,
		_In_ size_t wicDataSize,
		_Outptr_opt_ ID3D11Resource** texture,
		_Outptr_opt_ ID3D11ShaderResourceView** textureView,
		_In_ size_t maxsize = 0);

	HRESULT CreateWICTextureFromFile(
		_In_ ID3D11Device* d3dDevice,
		_In_z_ const wchar_t* szFileName,
		_Outptr_opt_ ID3D11Resource** texture,
		_Outptr_opt_ ID3D11ShaderResourceView** textureView,
		_In_ size_t maxsize = 0);

	// Standard version with optional auto-gen mipmap support
	HRESULT CreateWICTextureFromMemory(
		_In_ ID3D11Device* d3dDevice,
		_In_opt_ ID3D11DeviceContext* d3dContext,
		_In_reads_bytes_(wicDataSize) const uint8_t* wicData,
		_In_ size_t wicDataSize,
		_Outptr_opt_ ID3D11Resource** texture,
		_Outptr_opt_ ID3D11ShaderResourceView** textureView,
		_In_ size_t maxsize = 0);

	HRESULT CreateWICTextureFromFile(
		_In_ ID3D11Device* d3dDevice,
		_In_opt_ ID3D11DeviceContext* d3dContext,
		_In_z_ const wchar_t* szFileName,
		_Outptr_opt_ ID3D11Resource** texture,
		_Outptr_opt_ ID3D11ShaderResourceView** textureView,
		_In_ size_t maxsize = 0);

	// Extended version
	HRESULT CreateWICTextureFromMemoryEx(
		_In_ ID3D11Device* d3dDevice,
		_In_reads_bytes_(wicDataSize) const uint8_t* wicData,
		_In_ size_t wicDataSize,
		_In_ size_t maxsize,
		_In_ D3D11_USAGE usage,
		_In_ unsigned int bindFlags,
		_In_ unsigned int cpuAccessFlags,
		_In_ unsigned int miscFlags,
		_In_ unsigned int loadFlags,
		_Outptr_opt_ ID3D11Resource** texture,
		_Outptr_opt_ ID3D11ShaderResourceView** textureView);

	HRESULT CreateWICTextureFromFileEx(
		_In_ ID3D11Device* d3dDevice,
		_In_z_ const wchar_t* szFileName,
		_In_ size_t maxsize,
		_In_ D3D11_USAGE usage,
		_In_ unsigned int bindFlags,
		_In_ unsigned int cpuAccessFlags,
		_In_ unsigned int miscFlags,
		_In_ unsigned int loadFlags,
		_Outptr_opt_ ID3D11Resource** texture,
		_Outptr_opt_ ID3D11ShaderResourceView** textureView);

	// Extended version with optional auto-gen mipmap support
	HRESULT CreateWICTextureFromMemoryEx(
		_In_ ID3D11Device* d3dDevice,
		_In_opt_ ID3D11DeviceContext* d3dContext,
		_In_reads_bytes_(wicDataSize) const uint8_t* wicData,
		_In_ size_t wicDataSize,
		_In_ size_t maxsize,
		_In_ D3D11_USAGE usage,
		_In_ unsigned int bindFlags,
		_In_ unsigned int cpuAccessFlags,
		_In_ unsigned int miscFlags,
		_In_ unsigned int loadFlags,
		_Outptr_opt_ ID3D11Resource** texture,
		_Outptr_opt_ ID3D11ShaderResourceView** textureView);

	HRESULT CreateWICTextureFromFileEx(
		_In_ ID3D11Device* d3dDevice,
		_In_opt_ ID3D11DeviceContext* d3dContext,
		_In_z_ const wchar_t* szFileName,
		_In_ size_t maxsize,
		_In_ D3D11_USAGE usage,
		_In_ unsigned int bindFlags,
		_In_ unsigned int cpuAccessFlags,
		_In_ unsigned int miscFlags,
		_In_ unsigned int loadFlags,
		_Outptr_opt_ ID3D11Resource** texture,
		_Outptr_opt_ ID3D11ShaderResourceView** textureView);
}